396 lines
14 KiB
Python
396 lines
14 KiB
Python
|
"""distutils.cygwinccompiler
|
||
|
|
|
||
|
|
Provides the CygwinCCompiler class, a subclass of UnixCCompiler that
|
||
|
|
handles the Cygwin port of the GNU C compiler to Windows. It also contains
|
||
|
|
the Mingw32CCompiler class which handles the mingw32 port of GCC (same as
|
||
|
|
cygwin in no-cygwin mode).
|
||
|
|
"""
|
||
|
|
|
||
|
|
# problems:
|
||
|
|
#
|
||
|
|
# * if you use a msvc compiled python version (1.5.2)
|
||
|
|
# 1. you have to insert a __GNUC__ section in its config.h
|
||
|
|
# 2. you have to generate an import library for its dll
|
||
|
|
# - create a def-file for python??.dll
|
||
|
|
# - create an import library using
|
||
|
|
# dlltool --dllname python15.dll --def python15.def \
|
||
|
|
# --output-lib libpython15.a
|
||
|
|
#
|
||
|
|
# see also http://starship.python.net/crew/kernr/mingw32/Notes.html
|
||
|
|
#
|
||
|
|
# * We put export_symbols in a def-file, and don't use
|
||
|
|
# --export-all-symbols because it doesn't worked reliable in some
|
||
|
|
# tested configurations. And because other windows compilers also
|
||
|
|
# need their symbols specified this no serious problem.
|
||
|
|
#
|
||
|
|
# tested configurations:
|
||
|
|
#
|
||
|
|
# * cygwin gcc 2.91.57/ld 2.9.4/dllwrap 0.2.4 works
|
||
|
|
# (after patching python's config.h and for C++ some other include files)
|
||
|
|
# see also http://starship.python.net/crew/kernr/mingw32/Notes.html
|
||
|
|
# * mingw32 gcc 2.95.2/ld 2.9.4/dllwrap 0.2.4 works
|
||
|
|
# (ld doesn't support -shared, so we use dllwrap)
|
||
|
|
# * cygwin gcc 2.95.2/ld 2.10.90/dllwrap 2.10.90 works now
|
||
|
|
# - its dllwrap doesn't work, there is a bug in binutils 2.10.90
|
||
|
|
# see also http://sources.redhat.com/ml/cygwin/2000-06/msg01274.html
|
||
|
|
# - using gcc -mdll instead dllwrap doesn't work without -static because
|
||
|
|
# it tries to link against dlls instead their import libraries. (If
|
||
|
|
# it finds the dll first.)
|
||
|
|
# By specifying -static we force ld to link against the import libraries,
|
||
|
|
# this is windows standard and there are normally not the necessary symbols
|
||
|
|
# in the dlls.
|
||
|
|
# *** only the version of June 2000 shows these problems
|
||
|
|
# * cygwin gcc 3.2/ld 2.13.90 works
|
||
|
|
# (ld supports -shared)
|
||
|
|
# * mingw gcc 3.2/ld 2.13 works
|
||
|
|
# (ld supports -shared)
|
||
|
|
# * llvm-mingw with Clang 11 works
|
||
|
|
# (lld supports -shared)
|
||
|
|
|
||
|
|
import os
|
||
|
|
import sys
|
||
|
|
import copy
|
||
|
|
import shlex
|
||
|
|
import warnings
|
||
|
|
from subprocess import check_output
|
||
|
|
|
||
|
|
from distutils.unixccompiler import UnixCCompiler
|
||
|
|
from distutils.file_util import write_file
|
||
|
|
from distutils.errors import (
|
||
|
|
DistutilsExecError,
|
||
|
|
CCompilerError,
|
||
|
|
CompileError,
|
||
|
|
UnknownFileError,
|
||
|
|
)
|
||
|
|
from distutils.version import LooseVersion, suppress_known_deprecation
|
||
|
|
|
||
|
|
|
||
|
|
def get_msvcr():
|
||
|
|
"""Include the appropriate MSVC runtime library if Python was built
|
||
|
|
with MSVC 7.0 or later.
|
||
|
|
"""
|
||
|
|
msc_pos = sys.version.find('MSC v.')
|
||
|
|
if msc_pos != -1:
|
||
|
|
msc_ver = sys.version[msc_pos + 6 : msc_pos + 10]
|
||
|
|
if msc_ver == '1300':
|
||
|
|
# MSVC 7.0
|
||
|
|
return ['msvcr70']
|
||
|
|
elif msc_ver == '1310':
|
||
|
|
# MSVC 7.1
|
||
|
|
return ['msvcr71']
|
||
|
|
elif msc_ver == '1400':
|
||
|
|
# VS2005 / MSVC 8.0
|
||
|
|
return ['msvcr80']
|
||
|
|
elif msc_ver == '1500':
|
||
|
|
# VS2008 / MSVC 9.0
|
||
|
|
return ['msvcr90']
|
||
|
|
elif msc_ver == '1600':
|
||
|
|
# VS2010 / MSVC 10.0
|
||
|
|
return ['msvcr100']
|
||
|
|
elif msc_ver == '1700':
|
||
|
|
# VS2012 / MSVC 11.0
|
||
|
|
return ['msvcr110']
|
||
|
|
elif msc_ver == '1800':
|
||
|
|
# VS2013 / MSVC 12.0
|
||
|
|
return ['msvcr120']
|
||
|
|
elif 1900 <= int(msc_ver) < 2000:
|
||
|
|
# VS2015 / MSVC 14.0
|
||
|
|
return ['ucrt', 'vcruntime140']
|
||
|
|
else:
|
||
|
|
raise ValueError("Unknown MS Compiler version %s " % msc_ver)
|
||
|
|
|
||
|
|
|
||
|
|
class CygwinCCompiler(UnixCCompiler):
|
||
|
|
"""Handles the Cygwin port of the GNU C compiler to Windows."""
|
||
|
|
|
||
|
|
compiler_type = 'cygwin'
|
||
|
|
obj_extension = ".o"
|
||
|
|
static_lib_extension = ".a"
|
||
|
|
shared_lib_extension = ".dll.a"
|
||
|
|
dylib_lib_extension = ".dll"
|
||
|
|
static_lib_format = "lib%s%s"
|
||
|
|
shared_lib_format = "lib%s%s"
|
||
|
|
dylib_lib_format = "cyg%s%s"
|
||
|
|
exe_extension = ".exe"
|
||
|
|
|
||
|
|
def __init__(self, verbose=0, dry_run=0, force=0):
|
||
|
|
|
||
|
|
super().__init__(verbose, dry_run, force)
|
||
|
|
|
||
|
|
status, details = check_config_h()
|
||
|
|
self.debug_print("Python's GCC status: %s (details: %s)" % (status, details))
|
||
|
|
if status is not CONFIG_H_OK:
|
||
|
|
self.warn(
|
||
|
|
"Python's pyconfig.h doesn't seem to support your compiler. "
|
||
|
|
"Reason: %s. "
|
||
|
|
"Compiling may fail because of undefined preprocessor macros." % details
|
||
|
|
)
|
||
|
|
|
||
|
|
self.cc = os.environ.get('CC', 'gcc')
|
||
|
|
self.cxx = os.environ.get('CXX', 'g++')
|
||
|
|
|
||
|
|
self.linker_dll = self.cc
|
||
|
|
shared_option = "-shared"
|
||
|
|
|
||
|
|
self.set_executables(
|
||
|
|
compiler='%s -mcygwin -O -Wall' % self.cc,
|
||
|
|
compiler_so='%s -mcygwin -mdll -O -Wall' % self.cc,
|
||
|
|
compiler_cxx='%s -mcygwin -O -Wall' % self.cxx,
|
||
|
|
linker_exe='%s -mcygwin' % self.cc,
|
||
|
|
linker_so=('%s -mcygwin %s' % (self.linker_dll, shared_option)),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Include the appropriate MSVC runtime library if Python was built
|
||
|
|
# with MSVC 7.0 or later.
|
||
|
|
self.dll_libraries = get_msvcr()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def gcc_version(self):
|
||
|
|
# Older numpy dependend on this existing to check for ancient
|
||
|
|
# gcc versions. This doesn't make much sense with clang etc so
|
||
|
|
# just hardcode to something recent.
|
||
|
|
# https://github.com/numpy/numpy/pull/20333
|
||
|
|
warnings.warn(
|
||
|
|
"gcc_version attribute of CygwinCCompiler is deprecated. "
|
||
|
|
"Instead of returning actual gcc version a fixed value 11.2.0 is returned.",
|
||
|
|
DeprecationWarning,
|
||
|
|
stacklevel=2,
|
||
|
|
)
|
||
|
|
with suppress_known_deprecation():
|
||
|
|
return LooseVersion("11.2.0")
|
||
|
|
|
||
|
|
def _compile(self, obj, src, ext, cc_args, extra_postargs, pp_opts):
|
||
|
|
"""Compiles the source by spawning GCC and windres if needed."""
|
||
|
|
if ext == '.rc' or ext == '.res':
|
||
|
|
# gcc needs '.res' and '.rc' compiled to object files !!!
|
||
|
|
try:
|
||
|
|
self.spawn(["windres", "-i", src, "-o", obj])
|
||
|
|
except DistutilsExecError as msg:
|
||
|
|
raise CompileError(msg)
|
||
|
|
else: # for other files use the C-compiler
|
||
|
|
try:
|
||
|
|
self.spawn(
|
||
|
|
self.compiler_so + cc_args + [src, '-o', obj] + extra_postargs
|
||
|
|
)
|
||
|
|
except DistutilsExecError as msg:
|
||
|
|
raise CompileError(msg)
|
||
|
|
|
||
|
|
def link(
|
||
|
|
self,
|
||
|
|
target_desc,
|
||
|
|
objects,
|
||
|
|
output_filename,
|
||
|
|
output_dir=None,
|
||
|
|
libraries=None,
|
||
|
|
library_dirs=None,
|
||
|
|
runtime_library_dirs=None,
|
||
|
|
export_symbols=None,
|
||
|
|
debug=0,
|
||
|
|
extra_preargs=None,
|
||
|
|
extra_postargs=None,
|
||
|
|
build_temp=None,
|
||
|
|
target_lang=None,
|
||
|
|
):
|
||
|
|
"""Link the objects."""
|
||
|
|
# use separate copies, so we can modify the lists
|
||
|
|
extra_preargs = copy.copy(extra_preargs or [])
|
||
|
|
libraries = copy.copy(libraries or [])
|
||
|
|
objects = copy.copy(objects or [])
|
||
|
|
|
||
|
|
# Additional libraries
|
||
|
|
libraries.extend(self.dll_libraries)
|
||
|
|
|
||
|
|
# handle export symbols by creating a def-file
|
||
|
|
# with executables this only works with gcc/ld as linker
|
||
|
|
if (export_symbols is not None) and (
|
||
|
|
target_desc != self.EXECUTABLE or self.linker_dll == "gcc"
|
||
|
|
):
|
||
|
|
# (The linker doesn't do anything if output is up-to-date.
|
||
|
|
# So it would probably better to check if we really need this,
|
||
|
|
# but for this we had to insert some unchanged parts of
|
||
|
|
# UnixCCompiler, and this is not what we want.)
|
||
|
|
|
||
|
|
# we want to put some files in the same directory as the
|
||
|
|
# object files are, build_temp doesn't help much
|
||
|
|
# where are the object files
|
||
|
|
temp_dir = os.path.dirname(objects[0])
|
||
|
|
# name of dll to give the helper files the same base name
|
||
|
|
(dll_name, dll_extension) = os.path.splitext(
|
||
|
|
os.path.basename(output_filename)
|
||
|
|
)
|
||
|
|
|
||
|
|
# generate the filenames for these files
|
||
|
|
def_file = os.path.join(temp_dir, dll_name + ".def")
|
||
|
|
lib_file = os.path.join(temp_dir, 'lib' + dll_name + ".a")
|
||
|
|
|
||
|
|
# Generate .def file
|
||
|
|
contents = ["LIBRARY %s" % os.path.basename(output_filename), "EXPORTS"]
|
||
|
|
for sym in export_symbols:
|
||
|
|
contents.append(sym)
|
||
|
|
self.execute(write_file, (def_file, contents), "writing %s" % def_file)
|
||
|
|
|
||
|
|
# next add options for def-file and to creating import libraries
|
||
|
|
|
||
|
|
# doesn't work: bfd_close build\...\libfoo.a: Invalid operation
|
||
|
|
# extra_preargs.extend(["-Wl,--out-implib,%s" % lib_file])
|
||
|
|
# for gcc/ld the def-file is specified as any object files
|
||
|
|
objects.append(def_file)
|
||
|
|
|
||
|
|
# end: if ((export_symbols is not None) and
|
||
|
|
# (target_desc != self.EXECUTABLE or self.linker_dll == "gcc")):
|
||
|
|
|
||
|
|
# who wants symbols and a many times larger output file
|
||
|
|
# should explicitly switch the debug mode on
|
||
|
|
# otherwise we let ld strip the output file
|
||
|
|
# (On my machine: 10KiB < stripped_file < ??100KiB
|
||
|
|
# unstripped_file = stripped_file + XXX KiB
|
||
|
|
# ( XXX=254 for a typical python extension))
|
||
|
|
if not debug:
|
||
|
|
extra_preargs.append("-s")
|
||
|
|
|
||
|
|
UnixCCompiler.link(
|
||
|
|
self,
|
||
|
|
target_desc,
|
||
|
|
objects,
|
||
|
|
output_filename,
|
||
|
|
output_dir,
|
||
|
|
libraries,
|
||
|
|
library_dirs,
|
||
|
|
runtime_library_dirs,
|
||
|
|
None, # export_symbols, we do this in our def-file
|
||
|
|
debug,
|
||
|
|
extra_preargs,
|
||
|
|
extra_postargs,
|
||
|
|
build_temp,
|
||
|
|
target_lang,
|
||
|
|
)
|
||
|
|
|
||
|
|
# -- Miscellaneous methods -----------------------------------------
|
||
|
|
|
||
|
|
def object_filenames(self, source_filenames, strip_dir=0, output_dir=''):
|
||
|
|
"""Adds supports for rc and res files."""
|
||
|
|
if output_dir is None:
|
||
|
|
output_dir = ''
|
||
|
|
obj_names = []
|
||
|
|
for src_name in source_filenames:
|
||
|
|
# use normcase to make sure '.rc' is really '.rc' and not '.RC'
|
||
|
|
base, ext = os.path.splitext(os.path.normcase(src_name))
|
||
|
|
if ext not in (self.src_extensions + ['.rc', '.res']):
|
||
|
|
raise UnknownFileError(
|
||
|
|
"unknown file type '%s' (from '%s')" % (ext, src_name)
|
||
|
|
)
|
||
|
|
if strip_dir:
|
||
|
|
base = os.path.basename(base)
|
||
|
|
if ext in ('.res', '.rc'):
|
||
|
|
# these need to be compiled to object files
|
||
|
|
obj_names.append(
|
||
|
|
os.path.join(output_dir, base + ext + self.obj_extension)
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
obj_names.append(os.path.join(output_dir, base + self.obj_extension))
|
||
|
|
return obj_names
|
||
|
|
|
||
|
|
|
||
|
|
# the same as cygwin plus some additional parameters
|
||
|
|
class Mingw32CCompiler(CygwinCCompiler):
|
||
|
|
"""Handles the Mingw32 port of the GNU C compiler to Windows."""
|
||
|
|
|
||
|
|
compiler_type = 'mingw32'
|
||
|
|
|
||
|
|
def __init__(self, verbose=0, dry_run=0, force=0):
|
||
|
|
|
||
|
|
super().__init__(verbose, dry_run, force)
|
||
|
|
|
||
|
|
shared_option = "-shared"
|
||
|
|
|
||
|
|
if is_cygwincc(self.cc):
|
||
|
|
raise CCompilerError('Cygwin gcc cannot be used with --compiler=mingw32')
|
||
|
|
|
||
|
|
self.set_executables(
|
||
|
|
compiler='%s -O -Wall' % self.cc,
|
||
|
|
compiler_so='%s -mdll -O -Wall' % self.cc,
|
||
|
|
compiler_cxx='%s -O -Wall' % self.cxx,
|
||
|
|
linker_exe='%s' % self.cc,
|
||
|
|
linker_so='%s %s' % (self.linker_dll, shared_option),
|
||
|
|
)
|
||
|
|
|
||
|
|
# Maybe we should also append -mthreads, but then the finished
|
||
|
|
# dlls need another dll (mingwm10.dll see Mingw32 docs)
|
||
|
|
# (-mthreads: Support thread-safe exception handling on `Mingw32')
|
||
|
|
|
||
|
|
# no additional libraries needed
|
||
|
|
self.dll_libraries = []
|
||
|
|
|
||
|
|
# Include the appropriate MSVC runtime library if Python was built
|
||
|
|
# with MSVC 7.0 or later.
|
||
|
|
self.dll_libraries = get_msvcr()
|
||
|
|
|
||
|
|
|
||
|
|
# Because these compilers aren't configured in Python's pyconfig.h file by
|
||
|
|
# default, we should at least warn the user if he is using an unmodified
|
||
|
|
# version.
|
||
|
|
|
||
|
|
CONFIG_H_OK = "ok"
|
||
|
|
CONFIG_H_NOTOK = "not ok"
|
||
|
|
CONFIG_H_UNCERTAIN = "uncertain"
|
||
|
|
|
||
|
|
|
||
|
|
def check_config_h():
|
||
|
|
"""Check if the current Python installation appears amenable to building
|
||
|
|
extensions with GCC.
|
||
|
|
|
||
|
|
Returns a tuple (status, details), where 'status' is one of the following
|
||
|
|
constants:
|
||
|
|
|
||
|
|
- CONFIG_H_OK: all is well, go ahead and compile
|
||
|
|
- CONFIG_H_NOTOK: doesn't look good
|
||
|
|
- CONFIG_H_UNCERTAIN: not sure -- unable to read pyconfig.h
|
||
|
|
|
||
|
|
'details' is a human-readable string explaining the situation.
|
||
|
|
|
||
|
|
Note there are two ways to conclude "OK": either 'sys.version' contains
|
||
|
|
the string "GCC" (implying that this Python was built with GCC), or the
|
||
|
|
installed "pyconfig.h" contains the string "__GNUC__".
|
||
|
|
"""
|
||
|
|
|
||
|
|
# XXX since this function also checks sys.version, it's not strictly a
|
||
|
|
# "pyconfig.h" check -- should probably be renamed...
|
||
|
|
|
||
|
|
from distutils import sysconfig
|
||
|
|
|
||
|
|
# if sys.version contains GCC then python was compiled with GCC, and the
|
||
|
|
# pyconfig.h file should be OK
|
||
|
|
if "GCC" in sys.version:
|
||
|
|
return CONFIG_H_OK, "sys.version mentions 'GCC'"
|
||
|
|
|
||
|
|
# Clang would also work
|
||
|
|
if "Clang" in sys.version:
|
||
|
|
return CONFIG_H_OK, "sys.version mentions 'Clang'"
|
||
|
|
|
||
|
|
# let's see if __GNUC__ is mentioned in python.h
|
||
|
|
fn = sysconfig.get_config_h_filename()
|
||
|
|
try:
|
||
|
|
config_h = open(fn)
|
||
|
|
try:
|
||
|
|
if "__GNUC__" in config_h.read():
|
||
|
|
return CONFIG_H_OK, "'%s' mentions '__GNUC__'" % fn
|
||
|
|
else:
|
||
|
|
return CONFIG_H_NOTOK, "'%s' does not mention '__GNUC__'" % fn
|
||
|
|
finally:
|
||
|
|
config_h.close()
|
||
|
|
except OSError as exc:
|
||
|
|
return (CONFIG_H_UNCERTAIN, "couldn't read '%s': %s" % (fn, exc.strerror))
|
||
|
|
|
||
|
|
|
||
|
|
def is_cygwincc(cc):
|
||
|
|
'''Try to determine if the compiler that would be used is from cygwin.'''
|
||
|
|
out_string = check_output(shlex.split(cc) + ['-dumpmachine'])
|
||
|
|
return out_string.strip().endswith(b'cygwin')
|
||
|
|
|
||
|
|
|
||
|
|
get_versions = None
|
||
|
|
"""
|
||
|
|
A stand-in for the previous get_versions() function to prevent failures
|
||
|
|
when monkeypatched. See pypa/setuptools#2969.
|
||
|
|
"""
|